Alternating current electric bell



Apri@ 35 1947- F. G. BARBER ALTERNATING CURRENT ELECTRIC BELL FiledMarch 23, 1945 INVENTOR.

2W/anla G Barber:

a' myx;

ATTE RN EYE Patented Apr. 15, 1947 UNITED STATES PATENT OFFICE 1 Claim.

My present invention, in its broad aspect, has reference to improvementsin electric bells and chimes using alternating current, and is designedto be wired into an ordinary house current circuit, and is designed toeliminate the disadvantages of a direct current bell or chime whichrequires the use of batteries, is easily put out of order, and requiresconsiderable attention. More particularly, it is my purpose to providean alternating current bell or chime which does not require the use of atransformer, batteries, circuit breakers, or the like auxiliaryapparatus, and which will not get out of order or become broken orderanged, and which is simple, sturdy and practical in operation. Ineliminating the use of a transformer, I use a great many turns of wirein the core windings, and the magnet is of required strength to vibratea unique and improved spring metal armature which carries the bellclapper or chime clapper or hammer and which bows as it oscillates toand from the bell or chime.

Other and equally important objects and advantages of my invention willbe apparent from the following detailed description and drawings, and itis pointed out that changes in form, size, shape, materials, andconstruction and arrangement of parts is permissible and within thepurview of my broad inventive concept and the scope of the appendedclaim.

In the drawings, wherein I have illustrated a preferred form of myinvention as applied to a bell, and a chime:

Figure 1 is a top plan view of the invention as applied to a bell;

Figure 2 is a side view, partly in section;

Figure 3 is a side View of the invention as applied to a chime, and

Figure 4 is a top plan view.

In the drawings, wherein like characters of reference are used todesignate like or similar parts:

The numeral I designates the base which has a Wide end 2 tapering to anarrow end 3, and through the ends are holes 4 for attaching the bell orchime to a wall or the like. In describing my invention in detail, it ispointed out that all elements of the operating mechanism and the likeare the same as applied to both bells and chimes except for the mountingand construction of the bell and the chime and the construction andmounting of the clapper. A pair of contact f posts 5 and 5 forintroduction of alternating electric current are provided on the end 4which are connected as at 'I with the core and magnet 8 and 9 Wound toapproximate the functions of a transformer and mounted on the base inthe casing Il). The casing has a front opening II through which thearmature I2 extends, The armature has its end in the housing lixed to abracket I3. The bracket has a base I4, a standard I5 and a top piece I5with ears II clamping the end of the armature.

The armature is of a springy metal and is relatively long and inclinesdownwardly toward the end 3, and has xed to its free end a clapper I8.The clapper as shown in Figures l and 2 is a solid button. The bell I9is mounted on a standard 20 which is inverted U-shaped, with thearmature extending between the vertical parts thereof to dispose theclapper or button in engagement with the edge of the bell. In operation,the armature is oscillated to the electrical impulses and bows in themiddle so that a sharp, clear sound is made by the bell when struck bythe clapper.

In the form shown in Figures 3 and 4 the chime 2I is mounted on astandard 22 and through the coils 23 of which extends the armature. Theclapper 24 is a strip of sheet metalribbed centrally and having endclips bent around and under the armature. A sustained and pleasant chimeis given as the armature oscillates.

From the foregoing, it is believed that the operation and advantages ofmy invention will be apparent, but it is again emphasized thatinterpretation of its scope should only be conclusive when made in thelight of the subjoined claim,

I claim:

An alternating current audible signal, comprising a base having contactposts at its end, a magnet and core on the base, an elongated springmetal armature extending over the magnet and core, a bracket having abase, a standard extending upwardly therefrom and formed integrally withsaid base, and a top piece extending for- Wardly of said standard inparallel relation to said base, said base being secured to said firstsaid base and said top piece provided with ears for clamping engagementwith and for supporting the end of the armature, a casing on the magnetand core, an audible signal comprising a spirally wound chime with thearmature extending through the convolutions thereof, a bracket forsupporting the signal on the first said base externally of the casing, aclapper formed of ribbed sheet metal having clamping ears at its end toengage the armature at the free end thereof in a. position to engage theaudible signal, and the amature bridging over the core and magnet, isadapted to bow between its ends under the inuence of an electricalimpulse through the contact posts on said base,

FRANK G. BARBER.

REFERENCES CITED The following references are of record in the le ofthis patent:

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